- 2.6.17 port work build breaks, but the patch set is relativly stable

[linux-flexiantxendom0-3.2.10.git] / fs / super.c

diff --git a/fs/super.c b/fs/super.c
index 7ec9f12..8b7ecaa 100644 (file)
--- a/fs/super.c
+++ b/fs/super.c
@@ -37,6 +37,7 @@
 #include <linux/writeback.h>           /* for the emergency remount stuff */
 #include <linux/idr.h>
 #include <linux/kobject.h>
+#include <linux/mutex.h>
 #include <asm/uaccess.h>
 
 
@@ -55,11 +56,10 @@ DEFINE_SPINLOCK(sb_lock);
  */
 static struct super_block *alloc_super(void)
 {
-       struct super_block *s = kmalloc(sizeof(struct super_block),  GFP_USER);
+       struct super_block *s = kzalloc(sizeof(struct super_block),  GFP_USER);
        static struct super_operations default_op;
 
        if (s) {
-               memset(s, 0, sizeof(struct super_block));
                if (security_sb_alloc(s)) {
                        kfree(s);
                        s = NULL;
@@ -76,9 +76,9 @@ static struct super_block *alloc_super(void)
                down_write(&s->s_umount);
                s->s_count = S_BIAS;
                atomic_set(&s->s_active, 1);
-               sema_init(&s->s_vfs_rename_sem,1);
-               sema_init(&s->s_dquot.dqio_sem, 1);
-               sema_init(&s->s_dquot.dqonoff_sem, 1);
+               mutex_init(&s->s_vfs_rename_mutex);
+               mutex_init(&s->s_dquot.dqio_mutex);
+               mutex_init(&s->s_dquot.dqonoff_mutex);
                init_rwsem(&s->s_dquot.dqptr_sem);
                s->s_prunes = 0;
                init_waitqueue_head(&s->s_wait_prunes);
@@ -383,9 +383,9 @@ restart:
 void sync_filesystems(int wait)
 {
        struct super_block *sb;
-       static DECLARE_MUTEX(mutex);
+       static DEFINE_MUTEX(mutex);
 
-       down(&mutex);           /* Could be down_interruptible */
+       mutex_lock(&mutex);             /* Could be down_interruptible */
        spin_lock(&sb_lock);
        list_for_each_entry(sb, &super_blocks, s_list) {
                if (!sb->s_op->sync_fs)
@@ -414,7 +414,7 @@ restart:
                        goto restart;
        }
        spin_unlock(&sb_lock);
-       up(&mutex);
+       mutex_unlock(&mutex);
 }
 
 /**
@@ -705,9 +705,9 @@ struct super_block *get_sb_bdev(struct file_system_type *fs_type,
         * will protect the lockfs code from trying to start a snapshot
         * while we are mounting
         */
-       down(&bdev->bd_mount_sem);
+       mutex_lock(&bdev->bd_mount_mutex);
        s = sget(fs_type, test_bdev_super, set_bdev_super, bdev);
-       up(&bdev->bd_mount_sem);
+       mutex_unlock(&bdev->bd_mount_mutex);
        if (IS_ERR(s))
                goto out;
 
@@ -724,7 +724,7 @@ struct super_block *get_sb_bdev(struct file_system_type *fs_type,
                s->s_flags = flags;
                strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
                sb_set_blocksize(s, block_size(bdev));
-               error = fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
+               error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
                if (error) {
                        up_write(&s->s_umount);
                        deactivate_super(s);
@@ -768,7 +768,7 @@ struct super_block *get_sb_nodev(struct file_system_type *fs_type,
 
        s->s_flags = flags;
 
-       error = fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
+       error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
        if (error) {
                up_write(&s->s_umount);
                deactivate_super(s);
@@ -797,7 +797,7 @@ struct super_block *get_sb_single(struct file_system_type *fs_type,
                return s;
        if (!s->s_root) {
                s->s_flags = flags;
-               error = fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
+               error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
                if (error) {
                        up_write(&s->s_umount);
                        deactivate_super(s);